00278nam a2200109 a 4500008004100000050001900041245002500060246002800085260003700113300000900150350000900159120416s1965    ||||||||||||||||| ||    u  aHA 1977.Z2 Zam10aDigest of statistics  aexplanatory notes, 1965  aLusakabGovernment Printerc1965  a16p.  a0.00